Showing papers in "Gait & Posture in 2008"

TL;DR: Automatic event detection from the two kinematic-based algorithms will aid researchers by accurately determining gait events during the analysis of treadmill and overground walking.

TL;DR: The use of accelerometers attached to the upper body has provided useful insights into the motor control of normal walking, age-related differences in dynamic postural control, and gait patterns in people with movement disorders.

TL;DR: The GDI offers an alternative to the GGI as a comprehensive quantitative gait pathology index, and can be readily computed using the electronic addendum provided with this article.

TL;DR: The results indicated that fall detection using a triaxial accelerometer worn at the waist or head is efficient, even with quite simple threshold-based algorithms, with a sensitivity of 97-98% and specificity of 100%.

TL;DR: The greater variability observed in the gait of older adults may result more from loss of strength and flexibility than from their slower speeds.

TL;DR: In conclusion, walking near self-selected speeds improves the utilization of elastic energy storage and recovery in the uniarticular ankle plantar flexors and reduces negative fiber work, when compared to faster or slower speeds.

TL;DR: In comparison with younger participants, older participants exhibited better relative reliability (ICC) for all COP measures and comparable absolute reliability (SEM) except for mean velocity and sway area, which may be useful in guiding the future selection and interpretation of COP-based measures.

TL;DR: A standardized measurement method for unconstrained movement analysis of the UX that includes hand orientation, for a set of functional tasks for the UX and obtain normative values is developed to form the normative basis for the development of a 'UX analysis report' equivalent to the 'gait analysis report'.

TL;DR: Higher correlations were observed between the protocols with similar biomechanical models, whereas little influence seems to be ascribed to the marker-set, and all five protocols showed good intra-protocol repeatability.

TL;DR: The results support the perceived benefits of gait training programs that incorporate virtual reality to augment the community ambulation of individuals with stroke.

TL;DR: The aim of this work was to use bone anchored external markers to describe the kinematics of the tibia, fibula, talus, calcaneus, navicular, cuboid, medial cuneiform, first and fifth metatarsals during gait.

TL;DR: Tai Chi appears to be an appropriate, safe and effective form of exercise for some individuals with mild-moderately severe PD.

TL;DR: The proposed methodology allowed for the estimate of lower limb joint angular kinematics in a repeatable and consistent manner, enabling inertial and magnetic sensing based systems to be used especially for outdoor human movement analysis applications.

TL;DR: The literature on upright standing with concurrent cognitive tasks is reviewed, and paradigmatic variations that possibly contribute to dual-task data differences are highlighted.

TL;DR: The results showed that, when using the symmetry index, the interpretation of asymmetry can be highly affected by the choice of reference value, and that the symmetry angle does not require a reference value and is not prone to the same limitations.

TL;DR: Major dual task effects were observed for gait speed, stride time, average stride length, and cadence, but not for stride time variability; only speech was significantly affected by concurrent walking.

TL;DR: Age-associated differences related to M-L COM stability suggest that the quantification of COM control during NB gait may improve identification of older persons at increased falls risk.

TL;DR: The length of the gait initiation phase before achieving steady state walking in frail older people is determined to determine and assessments of steady state gait in frail elderly people should exclude the first 2.5m of walking.

TL;DR: It is hypothesized that central nervous system (CNS) impairments will affect motor control and be manifested as increased stance time and step length variability, while sensory impairments would affect balance and be manifest as increased step width variability.

TL;DR: The shift in pelvis-thorax coordination from in-phase to out of phase with increasing velocity was found to depend on the pelvis beginning to move in- phase with the femur, while the thorax continued to counter rotate with respect to the Femur.

TL;DR: Individuals with a flat foot could be at a lower risk for lateral column metatarsal stress fractures, indicating that foot type should be assessed when determining an individual's risk for metatarsals stress fractures.

TL;DR: Examining amputee anterior/posterior ground reaction force impulses and joint kinetics across a wide range of steady-state walking speeds found that increasing residual leg hip extensor strength and output may be a useful mechanism to reduce GRF loading asymmetry between the intact and residual legs.

TL;DR: Elderly men exhibit greater MTC variability than young men, which in the absence of an age-related increase in median MTC, may increase the risk of tripping in the elderly.

TL;DR: A threshold detection method for identifying gait events and evaluating the reliability of a system on ten subjects with dropped foot and three non-impaired controls was described and it was shown that thereshold detection method is reliable.

TL;DR: Prolonged standing resulted in LBD, yet few significant changes in the measured variables were observed over time, suggesting that LBD is not linked with alterations in standingover time, but rather associated with how an individual initially stands.

TL;DR: The present study shows that slimmer and more flexible children's shoes do not change foot motion as much as conventional shoes and therefore should be recommended not only for children in this age but for healthy children in general.

TL;DR: In this paper, the effects of long distance running on plantar pressure patterns before and after a marathon race were investigated, and the authors found that the increased peak pressure under the metatarsal heads after the race indicates a load shift from the toes to the head.

TL;DR: The results suggest that young persons with recurrent LBP have an altered body inclination that might be caused by anticipation of postural instability, and the adopted forward inclined posture may potentially be a factor in the recurrence of LBP.

TL;DR: Investigating whether two of the foam properties, i.e. density and elastic modulus, influenced recorded anteroposterior and lateral torque variance with eyes open and eyes closed concluded that caution should be taken when analysing balance deficits with foam test setups, because the foam Properties may influence the recorded body movements.

TL;DR: The Emed ST4 system was found to be repeatable and the ranges of the parameters documented can be applied in orthopaedic clinics as part of the assessment of pathological conditions.